Materials: Silica gel base + special non-slip steel studs. The special ground-gripping steel studs offer excellent traction on ice and snow, reduce the risk of slipping and the difficulty of walking. Traction: 7 strategically placed spikes provide you the maximum traction when hiking or trekking in woods, snow and more. Made from steel, these micro spikes are anti-corrosive, and durable. With high cold resistance capable of retaining elasticity at -40 degrees F, these grippers can firmly hold the snowfield and help you walk more stably. Easy to carry: Easy to use nylon straps and silica gel base material composition makes it portable enough for you to carry for hiking, trekking, running, climbing, fishing, or any other outdoor activities easily. Non-slip cleats: The steel spikes provide you much needed traction on grass, snow, ice, loose dirt, or any kind of slippery surface. It ensures a secure grip when walking and running on snow and on icy, or slippery surfaces. Easy to put on and take off: Walk with confidence on any terrain, ice, mud sand, and wet grass. Durable harness ensures a tight hold on your shoe, even at cold temperatures. Ergonomic plate system for added spike stability. Warning:Not suitable for children under 11 years. For use under adult supervision Warning:To be used under the direct supervision of an adult